WO2021143832A1 - 一种具有活动导丝功能的射频消融导管 - Google Patents
一种具有活动导丝功能的射频消融导管 Download PDFInfo
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- WO2021143832A1 WO2021143832A1 PCT/CN2021/072123 CN2021072123W WO2021143832A1 WO 2021143832 A1 WO2021143832 A1 WO 2021143832A1 CN 2021072123 W CN2021072123 W CN 2021072123W WO 2021143832 A1 WO2021143832 A1 WO 2021143832A1
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- WIPO (PCT)
- Prior art keywords
- guide wire
- distal end
- movable guide
- electrode
- ablation catheter
- Prior art date
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- 238000007674 radiofrequency ablation Methods 0.000 title claims abstract description 105
- 230000009471 action Effects 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims description 5
- 238000001356 surgical procedure Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 37
- 238000002679 ablation Methods 0.000 description 27
- 210000004204 blood vessel Anatomy 0.000 description 15
- 238000010586 diagram Methods 0.000 description 11
- 230000001464 adherent effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M25/09041—Mechanisms for insertion of guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
- A61B2018/00267—Expandable means emitting energy, e.g. by elements carried thereon having a basket shaped structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1435—Spiral
- A61B2018/1437—Spiral whereby the windings of the spiral touch each other such as to create a continuous surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1475—Electrodes retractable in or deployable from a housing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/033—Abutting means, stops, e.g. abutting on tissue or skin
- A61B2090/034—Abutting means, stops, e.g. abutting on tissue or skin abutting on parts of the device itself
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09175—Guide wires having specific characteristics at the distal tip
Definitions
- the shape of the distal end of the soft guide wire is composed of one or more of straight lines, curved lines and circular arcs.
- Figure 1 is a schematic diagram of the structure of the movable guide wire provided by the first embodiment
- the soft guide wire 12 has a guiding function to facilitate entry into the target branch blood vessel.
- the distal end of the soft guide wire 12 arranged at the distal end of the movable guide wire 10 is angled from 0 to 90 degrees.
- the shape of the distal end of the soft guide wire 12 can be composed of one or more of straight lines, curves and arcs, including but not limited to L-shaped, straight-line or U-shaped, so as to reach target lumens in different positions. .
- the radiofrequency ablation catheter with movable guidewire is directly sent to the target lumen, and then the guide is withdrawn
- the radio frequency ablation catheter with movable guide wire function provided by it has a structure similar to that of the first embodiment, wherein the radio frequency ablation catheter includes electrode holders 1 arranged in sequence , The slender catheter body 2 and the control handle 3, the two ends of the catheter body 2 are respectively connected with the electrode holder 1 and the control handle 3; the catheter body 2 is provided with a lumen for the movable guide wire 30 to slide; the movable guide wire 30
- the distal end of the rod passes through the catheter body 2 and protrudes from the distal end of the electrode stent 1 and is always restricted outside the distal end of the electrode stent; the proximal end of the movable guide wire 30 passes through the proximal end of the catheter body 2 and enters the control Handle 3, then, the proximal end of the movable guide wire 30 is fixed to the pusher provided on the control handle 3 or is fixed to the pusher provided on the outside of the control handle 3; the movable guide wire
- the flexible guidewire 32 is used to move the bundled radiofrequency ablation catheter to a new target ablation position, and then the guide catheter is withdrawn, and the radiofrequency ablation catheter is moved through the movable guidewire 30
- the electrode stent 1 is expanded and a new ablation is performed.
- the connection between the distal end of the movable guide wire 30 and the electrode holder 1 in the first embodiment can be achieved.
- the distal end fixation can achieve similar functions, but compared to fixing the distal end of the movable guide wire 30 and the distal end of the electrode holder 1, this kind of first stop point 33 and the second stop point 33 and the second stop are provided at the distal end of the movable guide wire 30.
- the way of the two stop points 34 is convenient to install, and has more flexibility for the adjustment of the electrode holder 1, and the electrode holder 1 is more adaptable to blood vessels.
- a movable guide wire with only a second stop point can be arranged inside the radiofrequency ablation catheter as needed, and the second stop point is set on the guide wire body and the electrode stent In the parallel part, the second stop point is limited between the distal end and the proximal end of the electrode holder, and the second stop point is used to converge the electrode holder.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Otolaryngology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Cardiology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Surgical Instruments (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Claims (11)
- 一种具有活动导丝功能的射频消融导管,包括依次设置的电极支架、细长的导管主体和控制手柄,导管主体的两端分别与电极支架和控制手柄连接;其特征在于:在所述导管主体内设置有供活动导丝滑动的管腔;所述活动导丝的远端从所述导管主体穿过并从所述电极支架的远端伸出并始终被限制在电极支架的远端外部;所述活动导丝的近端从所述导管主体的近端穿出并进入所述控制手柄,然后,所述活动导丝的近端被固定到设置在控制手柄上的推送件上或者被固定到设置在控制手柄外部的推送件上;所述活动导丝在所述推送件的作用下前送或后撤,用以改变电极支架的收束状态和扩张状态。
- 如权利要求1所述的射频消融导管,其特征在于:所述活动导丝包括导丝主体和设置在所述导丝主体远端的软导丝,设置在活动导丝远端的所述软导丝始终被保持在所述电极支架的外部。
- 如权利要求1所述的射频消融导管,其特征在于:所述活动导丝的远端不与所述电极支架的远端固定,所述活动导丝的远端和所述电极支架的远端可相对自由滑动。
- 如权利要求3所述的射频消融导管,其特征在于:所述活动导丝的导丝主体伸出所述电极支架远端的部分设置有第一止动点,所述第一止动点被限制在所述电极支架的远端的外部,所述第一止动点用于扩张电极支架。
- 如权利要求3所述的射频消融导管,其特征在于:所述活动导丝的导丝主体与电极支架平行的部分设置有第二止动点,所述第二止动点被限制在所述电极支架的远端和近端之间,所述第二止动点用于收束电极支架。
- 如权利要求3所述的射频消融导管,其特征在于:所述活动导丝的导丝主体伸出所述电极支架远端的部分设置有第一止动点,所述第一止动点被限制在所述电极支架的远端的外部,所述第一止动点用于扩张电极支架;并且,所述活动导丝的导丝主体与 电极支架平行的部分设置有第二止动点,所述第二止动点被限制在所述电极支架的远端和近端之间,所述第二止动点用于收束电极支架。
- 如权利要求2所述的射频消融导管,其特征在于:所述活动导丝的导丝主体靠近软导丝的部分与所述电极支架的远端固定;或者,所述活动导丝的导丝主体伸出所述电极支架远端的部分设置有第一止动点,所述第一止动点与所述电极支架的远端固定。
- 如权利要求2所述的射频消融导管,其特征在于:所述软导丝的远端的形状由直线、曲线以及圆弧等形状中的一种或多种组成。
- 如权利要求2所述的射频消融导管,其特征在于:所述软导丝的远端0~90度成角。
- 如权利要求2所述的射频消融导管,其特征在于:所述活动导丝的导丝主体是支撑丝。
- 如权利要求1所述的射频消融导管,其特征在于:所述电极支架是网管状支架、螺旋形支架或网篮状支架,所述电极支架上设置有多个电极。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020227028297A KR20220154090A (ko) | 2019-02-03 | 2021-01-15 | 가동 가이드 와이어를 구비한 고주파 절제 카테터 |
JP2022543630A JP2023534571A (ja) | 2019-02-03 | 2021-01-15 | 可動ガイドワイヤを有する高周波アブレーションカテーテル |
CA3168150A CA3168150A1 (en) | 2019-02-03 | 2021-01-15 | Radio frequency interference catheter having a movable guide wire |
MX2022008808A MX2022008808A (es) | 2019-02-03 | 2021-01-15 | Cateter de ablacion por radiofrecuencia con la funcion de cable guia en movimiento. |
EP21741894.6A EP4091563A4 (en) | 2019-02-03 | 2021-01-15 | RADIO FREQUENCY ABLATION CATHETER HAVING MOVING GUIDEWIRE FUNCTION |
AU2021208776A AU2021208776B2 (en) | 2019-02-03 | 2021-01-15 | Radio frequency ablation catheter having function of moving guide wire |
US17/813,043 US20220346868A1 (en) | 2019-02-03 | 2022-07-18 | Radio frequency ablation catheter having function of moving guide wire |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910108941 | 2019-02-03 | ||
CN202020095044.8U CN211862951U (zh) | 2019-02-03 | 2020-01-16 | 一种具有活动导丝功能的射频消融导管 |
CN202010048418.5A CN111513837B (zh) | 2019-02-03 | 2020-01-16 | 一种具有活动导丝功能的射频消融导管 |
CN202010048418.5 | 2020-01-16 | ||
CN202020095044.8 | 2020-01-16 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US17/813,043 Continuation-In-Part US20220346868A1 (en) | 2019-02-03 | 2022-07-18 | Radio frequency ablation catheter having function of moving guide wire |
Publications (1)
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WO2021143832A1 true WO2021143832A1 (zh) | 2021-07-22 |
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Family Applications (1)
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PCT/CN2021/072123 WO2021143832A1 (zh) | 2019-02-03 | 2021-01-15 | 一种具有活动导丝功能的射频消融导管 |
Country Status (9)
Country | Link |
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US (1) | US20220346868A1 (zh) |
EP (1) | EP4091563A4 (zh) |
JP (1) | JP2023534571A (zh) |
KR (1) | KR20220154090A (zh) |
CN (2) | CN111513837B (zh) |
AU (1) | AU2021208776B2 (zh) |
CA (1) | CA3168150A1 (zh) |
MX (1) | MX2022008808A (zh) |
WO (1) | WO2021143832A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111513837B (zh) * | 2019-02-03 | 2024-09-20 | 上海魅丽纬叶医疗科技有限公司 | 一种具有活动导丝功能的射频消融导管 |
CN115153814B (zh) * | 2022-06-23 | 2023-04-14 | 上海玮琅医疗科技有限公司 | 一种支架型射频消融导管 |
CN116370062B (zh) * | 2023-06-07 | 2023-08-01 | 四川锦江电子医疗器械科技股份有限公司 | 一种用于心脏标测和消融的导管头端及导管 |
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2020
- 2020-01-16 CN CN202010048418.5A patent/CN111513837B/zh active Active
- 2020-01-16 CN CN202020095044.8U patent/CN211862951U/zh active Active
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2021
- 2021-01-15 CA CA3168150A patent/CA3168150A1/en active Pending
- 2021-01-15 KR KR1020227028297A patent/KR20220154090A/ko active Search and Examination
- 2021-01-15 EP EP21741894.6A patent/EP4091563A4/en active Pending
- 2021-01-15 JP JP2022543630A patent/JP2023534571A/ja active Pending
- 2021-01-15 WO PCT/CN2021/072123 patent/WO2021143832A1/zh unknown
- 2021-01-15 MX MX2022008808A patent/MX2022008808A/es unknown
- 2021-01-15 AU AU2021208776A patent/AU2021208776B2/en active Active
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2022
- 2022-07-18 US US17/813,043 patent/US20220346868A1/en active Pending
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DE19537084A1 (de) * | 1995-10-05 | 1997-04-10 | Sievers Hans Hinrich Prof Dr M | Katheter zur transmyokardialen Revaskularisation |
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CA3168150A1 (en) | 2021-07-22 |
CN111513837B (zh) | 2024-09-20 |
EP4091563A1 (en) | 2022-11-23 |
EP4091563A4 (en) | 2024-01-17 |
AU2021208776A1 (en) | 2022-09-08 |
AU2021208776B2 (en) | 2024-10-03 |
JP2023534571A (ja) | 2023-08-10 |
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US20220346868A1 (en) | 2022-11-03 |
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